yes i do.... i never was ordered by a court to see my father, if i was, i dont abide by it. i hate my father.
As far as I can see, because there is the risk that he would take it out on you and your sister and the rest of your family, you might actually want to involve authorities. Then if things do go down, at least you sister wont be mandated to go see him anymore. But turning in a parent like that I cant imagine would go over well. maybe you should boycott him? i really have no idea what to tell you